Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Biochemical determinants of litter quality in 15 species of Sphagnum
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Plant Ecology and Evolution.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Plant Ecology and Evolution.
Univ South Bohemia, Dept Expt Plant Biol, Fac Sci, Branisovska 1760, CZ-37005 Ceske Budejovice, Czech Republic;Czech Acad Sci, Inst Bot, Dept Funct Ecol, Dukelska 135, CZ-37982 Trebon, Czech Republic.
2018 (English)In: Plant and Soil, ISSN 0032-079X, E-ISSN 1573-5036, Vol. 425, no 1-2, p. 161-176Article in journal (Refereed) Published
Abstract [en]

Background and aims Sphagnum mosses are ecosystem engineers that create and maintain boreal peatlands. With unique biochemistry, waterlogging and acidifying capacities, they build up meters-thick layers of peat, reducing competition and impeding decomposition. We quantify within-genus differences in biochemical composition to make inferences about decay rates, related to hummock-hollow and fen-bog gradients and to phylogeny. Methods We sampled litter from 15 Sphagnum species, abundant over the whole northern hemisphere. We used regression and Principal Components Analysis (PCA) to evaluate general relationships between litter quality parameters and decay rates measured under laboratory and field conditions. Results Both concentrations of the polysaccharide sphagnan and the soluble phenolics were positively correlated with intrinsic decay resistance, however, so were the previously understudied lignin-like phenolics. More resistant litter had more of all the important metabolites; consequently, PC1 scores were related to lab mass loss (R-2 = 0.57). There was no such relationship with field mass loss, which is also affected by the environment. PCA also revealed that metabolites clearly group Sphagnum sections (subgenera). Conclusions We suggest that the commonly stated growth-decomposition trade-off is largely due to litter quality. We show a strong phylogenetic control on Sphagnum metabolites, but their effects on decay are affected by nutrient availability in the habitat.

Place, publisher, year, edition, pages
2018. Vol. 425, no 1-2, p. 161-176
Keywords [en]
Peatland, Decay resistance, Sphagnan, Phenolics, Lignin, Hummock-hollow
National Category
Botany
Identifiers
URN: urn:nbn:se:uu:diva-354249DOI: 10.1007/s11104-018-3579-8ISI: 000430992300011OAI: oai:DiVA.org:uu-354249DiVA, id: diva2:1229135
Funder
Swedish Research CouncilThe Royal Swedish Academy of SciencesAvailable from: 2018-06-29 Created: 2018-06-29 Last updated: 2018-06-29Bibliographically approved

Open Access in DiVA

fulltext(855 kB)2 downloads
File information
File name FULLTEXT01.pdfFile size 855 kBChecksum SHA-512
b600b554c466b0b5d890e2147908557d592398fea9fd540c63ab79c3dd8bbdea09ab2f1c984d9df23bbc3323ba3a38b7220b43b9887c2b8a1587f0b9289f7125
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Bengtsson, FiaRydin, Håkan
By organisation
Plant Ecology and Evolution
In the same journal
Plant and Soil
Botany

Search outside of DiVA

GoogleGoogle Scholar
Total: 2 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 16 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf